Daikin FT25CV1A Spezifikationen

Si01-406SPLIT PairC-Series[Applied Models]zzzzNon-Inverter Pair : Cooling OnlyzzzzNon-Inverter Pair : Heat PumpИнструкция по обслуживанию

Si01-406 Introductionix1.1.3 Inspection after RepairBe sure to use the specified cable to connect between the indoor and outdoor units. Make the conne

Si01-406 TroubleshootingService Diagnosis 89TroubleshootingCheck No.6Refer to P.116NONONOCheck No. 6Indoor unit heat exchanger thermistor checkCheck t

Troubleshooting Si01-40690 Service Diagnosis4.4 Fan Motor or Related Abnormality(A6) 4.4.1 AC motor (FT25/35CV1A, FTY25/35CVMA)Remote Controller Displ

Si01-406 TroubleshootingService Diagnosis 914.4.2 DC Motor (FT50/60CV1A)Remote Controller DisplayA6Method of Malfunction DetectionThe rotation speed d

Troubleshooting Si01-40692 Service DiagnosisTroubleshootingCheck No.01Refer to P.115Replace fan motor.Replace indoor unit PCB.Replace indoor unit PCB.

Si01-406 TroubleshootingService Diagnosis 934.5 Thermistor or Related Abnormality (Indoor Unit) (C4,C9)Remote Controller DisplayC4, C9 Method of Malfu

Troubleshooting Si01-40694 Service Diagnosis4.6 Indoor Unit PCB AbnormalityRemote Controller Display∗Method of Malfunction DetectionThe proper program

Si01-406 TroubleshootingService Diagnosis 954.7 Signal Transmission Error (between Indoor and Outdoor Units) (U4)Remote Controller DisplayU4Method of

Troubleshooting Si01-40696 Service Diagnosis4.8 OL Activation (Compressor Overload) (E5)Remote Controller DisplayE5Method of Malfunction DetectionA co

Si01-406 TroubleshootingService Diagnosis 974.9 Compressor Lock (E6)Remote Controller DisplayE6Method of Malfunction DetectionCompressor startup error

Troubleshooting Si01-40698 Service Diagnosis4.10 Input Over Current Detection (E8)Remote Controller DisplayE8Method of Malfunction DetectionAn input o

Introduction Si01-406x1.1.4 Using IconsIcons are used to attract the attention of the reader to specific information. The meaning of each icon is desc

Si01-406 TroubleshootingService Diagnosis 994.11 Four Way Valve Abnormality (EA)Remote Controller DisplayEAMethod of Malfunction DetectionThe indoor a

Troubleshooting Si01-406100 Service DiagnosisTroubleshootingCheck No.5Refer to P.115Check No.6Refer to P.116Check No.11Refer to P.120Correct.Reconnect

Si01-406 TroubleshootingService Diagnosis 1014.12 High Pressure Control in Cooling (F6)Remote Controller DisplayF6Method of Malfunction DetectionHigh-

Troubleshooting Si01-406102 Service DiagnosisTroubleshootingCheck No.6Refer to P.116Check No.7Refer to P.117Check No.9Refer to P.119(R3076)CautionBe s

Si01-406 TroubleshootingService Diagnosis 1034.13 CT or Related Abnormality (H8)Remote Controller DisplayH8Method of Malfunction DetectionA CT or rela

Troubleshooting Si01-406104 Service DiagnosisTroubleshootingCheck No.12Refer to P.120Note: If the model doesn’t have SPM, replace the outdoor unit PCB

Si01-406 TroubleshootingService Diagnosis 1054.14 Thermistor or Related Abnormality (Outdoor Unit) (P4,J6,H9)Remote Controller DisplayP4, J6, H9Meth

Troubleshooting Si01-406106 Service DiagnosisTroubleshootingCheck No.6Refer to P.116P4 : Radiation fin thermistorJ6 : Outdoor heat exchanger thermisto

Si01-406 TroubleshootingService Diagnosis 1074.15 Electrical Box Temperature Rise (L3)Remote Controller DisplayL3Method of Malfunction DetectionAn ele

Troubleshooting Si01-406108 Service DiagnosisTroubleshootingCheck No.6Refer to P.116Check No.7Refer to P.117Check No.9Refer to P.119Turn off the power

Si01-406List of Function 1Part 1Part 1Part 1Part 1 List of Function List of Function List of Function List of Function1. Functions...

Si01-406 TroubleshootingService Diagnosis 1094.16 Radiation Fin Temperature Rise (L4)Remote Controller DisplayL4Method of Malfunction DetectionA radia

Troubleshooting Si01-406110 Service DiagnosisTroubleshootingCheck No.6Refer to P.116Check No.7Refer to P.117Check No.9Refer to P.119Turn off the power

Si01-406 TroubleshootingService Diagnosis 1114.17 Output Over Current Detection (L5)Remote Controller DisplayL5Method of Malfunction DetectionAn outpu

Troubleshooting Si01-406112 Service DiagnosisTroubleshootingCheck No.7Refer to P.117Check No.8Refer to P.118Check No.13Refer to P.121Note: If the mode

Si01-406 TroubleshootingService Diagnosis 1134.18 Insufficient Gas (U0)Remote Controller DisplayU0Method of Malfunction DetectionGas shortage detectio

Troubleshooting Si01-406114 Service DiagnosisTroubleshootingCheck No.6Refer to P.116Reconnect in position.Open the stop valve.Repair the pipe flare or

Si01-406 CheckService Diagnosis 1155. Check5.1 Fan Motor Connector Output CheckCheck No.01 1. Check connector connection.2. Check motor power supply v

Check Si01-406116 Service Diagnosis5.3 Thermistor Resistance CheckCheck No.6 Remove the connectors of the thermistors on the PCB, and measure the resi

Si01-406 CheckService Diagnosis 1175.4 Installation Condition CheckCheck No.7Installation condition checkNormalChange the position of the air discharg

Check Si01-406118 Service Diagnosis5.5 Discharge Pressure CheckCheck No.8Discharge pressure checkReplace compessor.Open the stop valve.Replace the pip

Functions Si01-4062 List of Function1. FunctionsCategory FunctionsFT25·35CV1AR25·35CV1AFT50·60CV1AR50·60CV1ACategory FunctionsFT25·35CV1AR25·35CV1AFT5

Si01-406 CheckService Diagnosis 1195.6 Outdoor Unit Fan System CheckCheck No.9 DC motor — FT50/60CV1AAC motor — FT25/35CV1A, FTY25/35CVMA5.7 Power Sup

Check Si01-406120 Service Diagnosis5.8 Inverter Units Refrigerant System CheckCheck No.115.9 Capacitor Voltage CheckCheck No.12 < Measuring method

Si01-406 CheckService Diagnosis 1215.10 Power Transistor CheckCheck No.13Note: Check to make sure that the voltage between the terminal of Power trans

Check Si01-406122 Service Diagnosis5.11 Hall IC CheckCheck No.16 1. Check the connector connection.2. With the power ON, operation OFF, and the connec

Si01-406 CheckService Diagnosis 1235.12 Power Transistor Output CheckCheck No.17 Measure the output current and voltage of the power transistor.Output

Check Si01-406124 Service Diagnosis5.13 Inverter Units Compressor / Refrigerant System CheckCheck No.18Compressor/refrigerant system checkFaulty compr

Si01-406Removal Procedure 125Part 7Part 7Part 7Part 7Removal ProcedureRemoval ProcedureRemoval ProcedureRemoval Procedure1. FT25/35CV1A, FTY25/35CVMA

FT25/35CV1A, FTY25/35CVMA Si01-406126 Removal Procedure1. FT25/35CV1A, FTY25/35CVMA1.1 Removal of Air FilterProcedure Warning Be sure to wait 10 minut

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1273. Remove the front panel.1Hook a finger onto the projection part provided on the both sides of

FT25/35CV1A, FTY25/35CVMA Si01-406128 Removal Procedure3When restoring the air filter, make sure that the projection parts on the panel are in the gui

Si01-406 FunctionsList of Function 3Category FunctionsFTY25·35CVMARY25·35CVMACategory FunctionsFTY25·35CVMARY25·35CVMABasic FunctionInverter (with Inv

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1291.2 Removal of Front GrilleProcedure Warning Be sure to wait 10 minutes or more after turning o

FT25/35CV1A, FTY25/35CVMA Si01-406130 Removal Procedure2. Remove the front grille assembly.1Remove the two screws, in the right and the left, which fi

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1313The front grille can be removed in a manner to pull out the upper part forward and lift up the

FT25/35CV1A, FTY25/35CVMA Si01-406132 Removal Procedure1.3 Removal of Horizontal Blades / Vertical BladesProcedure Warning Be sure to wait 10 minutes

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 133For restoring. 1. Since the key pattern hook is provided on the left side, insert the edge of

FT25/35CV1A, FTY25/35CVMA Si01-406134 Removal Procedure1.4 Removal of Electrical Parts Box / PCB / Swing MotorProcedure Warning Be sure to wait 10 min

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1355Remove a screw on the terminal strip.The electrical parts box can be removed instead of disen

FT25/35CV1A, FTY25/35CVMA Si01-406136 Removal Procedure7Pull up the electrical parts box forward to remove.A hook is provided on the behind.Step Proc

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1372. Remove the printed circuit board (PCB).1Remove the shelter.2Disengage the front plate of the

FT25/35CV1A, FTY25/35CVMA Si01-406138 Removal Procedure4Disengage the four knobs on the back of the signal receiver PCB.5Signal receiver PCBStep Proce

Functions Si01-4064 List of Function

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1396Control PCBThe control printed circuit board is integrated with the power supply printed circ

FT25/35CV1A, FTY25/35CVMA Si01-406140 Removal Procedure1.5 Removal of Heat ExchangerProcedure Warning Be sure to wait 10 minutes or more after turning

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1414Disengage the hooks of the pipe retainer on the back.5Pull auxiliary pipe forward to an angle

FT25/35CV1A, FTY25/35CVMA Si01-406142 Removal Procedure7Lift and remove heat exchanger. Caution!When removing or re-installing heat exchanger, be sure

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1431.6 Install of Drain PlugProcedure Warning Be sure to wait 10 minutes or more after turning off

FT25/35CV1A, FTY25/35CVMA Si01-406144 Removal Procedure1.7 Removal of Fan Rotor / Fan MotorProcedure Warning Be sure to wait 10 minutes or more after

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1452Disengage hook.3Loosen the hexagon head set screw on the fan rotor.Step Procedure Points

FT25/35CV1A, FTY25/35CVMA Si01-406146 Removal Procedure4Remove the motor and fan rotor.5Remove a screw on the left side panel.Step Procedure Points

Si01-406 FT25/35CV1A, FTY25/35CVMARemoval Procedure 1476Disengage a hook from the backward.7Since the fan bearing is made of rubber, push it strongly

FT50/60CV1A Si01-406148 Removal Procedure2. FT50/60CV1A2.1 Removal of Air Filter / Front PanelProcedure Warning Be sure to wait 10 minutes or mor

Si01-406Specifications 5Part 2Part 2Part 2Part 2 Specifications Specifications Specifications Specifications1. Specifications ...

Si01-406 FT50/60CV1ARemoval Procedure 149The right and left filters are interchangeable.Insert the air filters along grooves when installing.Set th

FT50/60CV1A Si01-406150 Removal Procedure4. Remove the front panel.1While opening the front panel further than it stops, release both axes and remove

Si01-406 FT50/60CV1ARemoval Procedure 1512.2 Removal of Front GrilleProcedure Warning Be sure to wait 10 minutes or more after turning off all po

FT50/60CV1A Si01-406152 Removal Procedure2Undo the three hooks on the top of the front grille.The front grille has three hooks on the center and the

Si01-406 FT50/60CV1ARemoval Procedure 1532.3 Removal of Horizontal Blades / Vertical BladesProcedure Warning Be sure to wait 10 minutes or more a

FT50/60CV1A Si01-406154 Removal Procedure2. Remove the vertical blades.1Undo the right and left pivots.2Undo the three claws.3Pull the vertical blades

Si01-406 FT50/60CV1ARemoval Procedure 1552.4 Removal of Electrical Parts Box / PCB / Swing MotorProcedure Warning Be sure to wait 10 minutes or m

FT50/60CV1A Si01-406156 Removal Procedure4. Remove the electrical parts box.1Disconnect the four connection wirings. Loosen the screw and remove the t

Si01-406 FT50/60CV1ARemoval Procedure 1575Dislocate the electrical parts box to the left and undo the back claw. The electrical parts box has a claw

FT50/60CV1A Si01-406158 Removal Procedure9Press the receiver units down and release the claws on the upper side, and then undo the claws on the lower

Specifications Si01-4066 Specifications1. Specifications220-230-240V 50HzNotes: MAX. interunit piping length: 25m MAX. interunit height difference:

Si01-406 FT50/60CV1ARemoval Procedure 1595. Remove the control PCB.1Undo the two claws on the lower side, and then the two claws on the upper side. Re

FT50/60CV1A Si01-406160 Removal Procedure2.5 Removal of Heat ExchangerProcedure Warning Be sure to wait 10 minutes or more after turning off all

Si01-406 FT50/60CV1ARemoval Procedure 1612. Remove the indoor unit.1Detach the indoor unit from the installation plate.3. Remove the piping fixture.1R

FT50/60CV1A Si01-406162 Removal Procedure2Release the claws on the left side.3Push the fixing claws on the right side and release.4Pull the heat excha

Si01-406 FT50/60CV1ARemoval Procedure 1632.6 Removal of Fan Rotor / Fan MotorProcedure Warning Be sure to wait 10 minutes or more after turning o

FT50/60CV1A Si01-406164 Removal Procedure3. Remove the fan motor.1Remove the fan rotor.Reassembling the fan motor(1) When reassembling the fan rotor,

Si01-406 R25/35CV1A, RY25/35CVMARemoval Procedure 1653. R25/35CV1A, RY25/35CVMA3.1 Removal of PanelsProcedure Warning Be sure to wait 10 minutes

R25/35CV1A, RY25/35CVMA Si01-406166 Removal Procedure2The top plate and the front plate are constructed in a monoblock. Remove the three screws at the

Si01-406 R25/35CV1A, RY25/35CVMARemoval Procedure 1673.2 Removal of Bellmouth and Left Side PlateProcedure Warning Be sure to wait 10 minutes or m

R25/35CV1A, RY25/35CVMA Si01-406168 Removal Procedure3.3 Removal of Electrical Device Mounting PlateProcedure Warning Be sure to wait 10 minutes o

Si01-406 SpecificationsSpecifications 7220-230-240V 50HzNotes: MAX. interunit piping length: 30m MAX. interunit height difference: 15m Amount of ad

Si01-406 R25/35CV1A, RY25/35CVMARemoval Procedure 1693.4 Removal of Propeller Fan and Fan MotorProcedure Warning Be sure to wait 10 minutes or mor

R25/35CV1A, RY25/35CVMA Si01-406170 Removal Procedure3.5 Removal of Compressor Noise Absorption PadProcedure Warning Be sure to wait 10 minutes or

Si01-406 R25/35CV1A, RY25/35CVMARemoval Procedure 1712Pull out the body of the noise absorption pad.Since the slit prepared for the piping on the noi

R25/35CV1A, RY25/35CVMA Si01-406172 Removal Procedure3.6 Removal of Partition PlateProcedure Warning Be sure to wait 10 minutes or more after turn

Si01-406 R25/35CV1A, RY25/35CVMARemoval Procedure 1734When restoring the partition plate, put the hook into the bottom frame.StepProcedure Points

R25/35CV1A, RY25/35CVMA Si01-406174 Removal Procedure3.7 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or more after turning o

Si01-406 R50/60CV1ARemoval Procedure 1754. R50/60CV1A4.1 Removal of PanelsProcedure Warning Be sure to wait 10 minutes or more after turning off all p

R50/60CV1A Si01-406176 Removal Procedure4.2 Removal of Electrical Parts BoxProcedure Warning Be sure to wait 10 minutes or more after turning off

Si01-406 R50/60CV1ARemoval Procedure 177Step Procedure Points3Remove top insulation material from compressor.Terminal code is printed. Do not scorch

R50/60CV1A Si01-406178 Removal Procedure6Remove the screw.7Take off the electrical parts box.Step Procedure Points

Specifications Si01-4068 Specifications220-230-240V 50HzNotes: MAX. interunit piping length: 15m MAX. interunit height difference: 15m Amount of ad

Si01-406 R50/60CV1ARemoval Procedure 1794.3 Removal of CompressorProcedure Warning Be sure to wait 10 minutes or more after turning off all power

R50/60CV1A Si01-406180 Removal Procedure3After disconnecting refrigerant pipes, remove three washer nuts that secure compressor in place. Use open-end

Si01-406Others 181Part 8Part 8Part 8Part 8OthersOthersOthersOthers1. Others ...

Others Si01-406182 Others1. Others1.1 Test Run from the Remote ControllerARC423 Series FT25/35CV1ASelect the lowest programmable temperature.Trial op

Si01-406 OthersOthers 183ARC433 series FT50/60CV1A, FTY25/35CVMASelect the lowest programmable temperature.Trial operation in cooling mode may be dis

Others Si01-406184 Others1.2 Jumper Settings1.2.1 When Two Units are Installed in One RoomHow to set the different addresses.When two indoor units a

Si01-406Appendix 185Part 9Part 9Part 9Part 9AppendixAppendixAppendixAppendix1. Piping Diagrams...

Piping Diagrams Si01-406186 Appendix1. Piping Diagrams1.1 Indoor UnitsFT25CV1A / FT35CV1AFT50CV1A / FT60CV1AFIELD PIPINGFIELD PIPING( CuT)(6.4C

Si01-406 Piping DiagramsAppendix 187FTY25CVMA / FTY35CVMA1.2 Outdoor UnitsR25CV1AFIELD PIPINGFIELD PIPING( CuT)(6.4CuT) FTY25--FTY35--7.9CuT12.79.5

Piping Diagrams Si01-406188 AppendixR35CV1AR50CV1A / R60CV1A9.5CuT7.9CuTCOMPRESSOROUTDOOR UNITPROPELLER FAN7.9CuT7.9CuTMHEAT EXCHANGERACCUMULATOR7.9Cu

Si01-406Table of Contents iNon Inverter PairNon Inverter PairNon Inverter PairNon Inverter PairC-SeriesC-SeriesC-SeriesC-SerieszCooling OnlyIndoor Uni

Si01-406 SpecificationsSpecifications 9 The data on the conditions (AS/NZS3823.1) :(Conditions)(Rated)FTY25CVMA FTY35CVMACooling Heating Cooling Heat

Si01-406 Piping DiagramsAppendix 189RY25CVMARY35CVMAVALVE9.5CuTFOUR WAYON:COOLING7.9CuT7.9CuTOUTDOOR UNITMUFFLERPROPELLER FANHEAT EXCHANGER7.9CuT 7.9C

Wiring Diagrams Si01-406190 Appendix2. Wiring Diagrams2.1 Indoor UnitsFT25CV1A / FT35CV1AFT50CV1A / FT60CV1AC70 : RUNNING CAPACITORFU : FUSEH1P,H2P :

Si01-406 Wiring DiagramsAppendix 191FTY25CVMA / FTY35CVMA2.2 Outdoor UnitsR25CV1ALED1PCB2H1PRECEIVERSIGNALCONTROLLERLED2H2PS1W REMOTEWIRELESS LED3H3PR

Wiring Diagrams Si01-406192 AppendixR35CV1AR50CV1APOWER SUPPLY220V-240V~ 50HzTO INDOOR UNITLN231X2MX1M2NL3176ºCTFUGRNBLKYLWBLKGRNL : LIVEN : NEUTRALYL

Si01-406 Wiring DiagramsAppendix 193R60CV1ARY25CVMA / RY35CVMA~ 50Hz 220-240VindoorPOWER SUPPLYK1M : COMPRESSOR RELAYF1S

Wiring Diagrams Si01-406194 Appendix

Si01-406Index iIndexIndexIndexIndexNumerics00 ...863-minutes standby ...

Si01-406ii Indexfiltersair purifying filter with photocatalytic deodorizing function ...26, 37, 149mold proof air filter

Si01-406Index iiiS32 ...159S6 ...

Si01-406iv Index

Specifications Si01-40610 Specifications

Si01-406Drawings & Flow Charts vDrawings & Flow ChartsDrawings & Flow ChartsDrawings & Flow ChartsDrawings & Flow ChartsAaddress s

Si01-406vi Drawings & Flow Chartsthermistor ...38thermistor or related abnormality (in

Head office:Umeda Center Bldg., 4-12, Nakazaki-Nishi 2-chome,Kita-ku, Osaka, 530-8323 JapanTokyo office:Shinjuku Sumitomo Bldg., 6-1 Nishi-Shinjuku2-c

Si01-406Printed Circuit Board Connector Wiring Diagram 11Part 3Part 3Part 3Part 3Printed Circuit BoardPrinted Circuit BoardPrinted Circuit BoardPrinte

Printed Circuit Board Connector Wiring Diagram Si01-40612 Printed Circuit Board Connector Wiring Diagram1. Printed Circuit Board Connector Wiring Diag

Si01-406 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 13Control PCBSignal Receiver PCBSW7LED1LED2RTH1S

Printed Circuit Board Connector Wiring Diagram Si01-40614 Printed Circuit Board Connector Wiring Diagram1.2 FT50/60CV1AConnectorsNote: Other designati

Si01-406 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 15PCB Detail PCB(1): Control PCBPCB(2): Signal R

Printed Circuit Board Connector Wiring Diagram Si01-40616 Printed Circuit Board Connector Wiring Diagram1.3 FTY25/35CVMAConnectorsNote: Other designat

Si01-406 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 17Control PCBSignal Receiver PCBFU1S1SW7Signal r

Printed Circuit Board Connector Wiring Diagram Si01-40618 Printed Circuit Board Connector Wiring Diagram1.4 RY25/35CVMAConnectorsNote: Other designati

Si01-406ii Table of Contents1. Introduction ... vii1.1 Safety

Si01-406 Printed Circuit Board Connector Wiring DiagramPrinted Circuit Board Connector Wiring Diagram 19Detail of PCB (1)Detail of PCB (2)Connect to S

Printed Circuit Board Connector Wiring Diagram Si01-40620 Printed Circuit Board Connector Wiring Diagram

Si01-406Functions and Control 21Part 4Part 4Part 4Part 4Functions and ControlFunctions and ControlFunctions and ControlFunctions and Control1. Functio

Functions of Cooling Only Models Si01-40622 Functions and Control1. Functions of Cooling Only Models1.1 Cooling Monitoring FunctionMonitoring function

Si01-406 Functions of Cooling Only ModelsFunctions and Control 231.2 Programme Dry FunctionBy the function of the microcomputer, programme dry operati

Functions of Cooling Only Models Si01-40624 Functions and Control1.3 Freeze-up Protection ControlWhen the indoor heat exchanger temperature falls belo

Si01-406 Functions of Cooling Only ModelsFunctions and Control 251.4 Air Flow Rate ControlIn cooling operation, if automatic setting has been selected

Functions of Cooling Only Models Si01-40626 Functions and Control1.6 Signal Receiving SignWhen the indoor unit receives a signal from the remote contr

Si01-406 Functions of Cooling Only ModelsFunctions and Control 271.9 Night Set ModeThis mode automatically keeps temperature slightly higher than the

Functions of Cooling Only Models Si01-40628 Functions and Control1.12 Auto-restart FunctionIf there is a power cut when the unit is operating, it will

Si01-406Table of Contents iii3.8 Liquid Compression Protection Function 1(Securing of Differential Pressure and Blown Air Temperature) ...453

Si01-406 Functions of Heat Pump ModelsFunctions and Control 292. Functions of Heat Pump Models2.1 Frequency PrincipleMain Control ParametersThe compre

Functions of Heat Pump Models Si01-40630 Functions and ControlInverter Features The inverter provides the following features:The regulating capacity

Si01-406 Functions of Heat Pump ModelsFunctions and Control 312.2 Power-Airflow Dual Flaps, Wide-Angle Louvers and Auto-SwingPower-Airflow Dual FlapsT

Functions of Heat Pump Models Si01-40632 Functions and Control2.3 Fan Speed Control for Indoor UnitsControl Mode The air flow rate can be automaticall

Si01-406 Functions of Heat Pump ModelsFunctions and Control 332.4 Programme Dry FunctionProgramme dry function removes humidity while preventing the r

Functions of Heat Pump Models Si01-40634 Functions and Control2.5 Automatic OperationAutomatic Cooling / Heating Function (Heat Pump Only)When the AUT

Si01-406 Functions of Heat Pump ModelsFunctions and Control 352.6 Night Set ModeWhen the OFF timer is set, the Night Set circuit automatically activat

Functions of Heat Pump Models Si01-40636 Functions and Control2.7 Powerful OperationOutline In order to exploit the cooling and heating capacity to fu

Si01-406 Functions of Heat Pump ModelsFunctions and Control 372.8 Other Functions2.8.1 Hot Start FunctionHeat Pump OnlyIn order to prevent the cold ai

Functions of Heat Pump Models Si01-40638 Functions and Control2.9 Function of Thermistor2.9.1 Heat Pump ModelA Outdoor Heat Exchanger Thermistor (DC

Si01-406iv Table of Contents5.3 Thermistor Resistance Check ...1165.4 Installation Conditio

Si01-406 Control for Heat Pump ModelsFunctions and Control 393. Control for Heat Pump Models3.1 Mode HierarchyOutline There are two modes; the mode se

Control for Heat Pump Models Si01-40640 Functions and Control3.2 Frequency ControlOutline Frequency will be determined according to the difference bet

Si01-406 Control for Heat Pump ModelsFunctions and Control 41Indoor Frequency Command (∆D signal)The difference between a room temperature and the tem

Control for Heat Pump Models Si01-40642 Functions and Control3.3 Controls at Mode Changing / Start-up3.3.1 Preheating OperationOutline Operate the inv

Si01-406 Control for Heat Pump ModelsFunctions and Control 433.4 Input Current ControlOutline Detect an input current by the CT during the compressor

Control for Heat Pump Models Si01-40644 Functions and Control3.6 Heating Peak-cut ControlOutline Heat Pump OnlyDuring heating operation, the signals b

Si01-406 Control for Heat Pump ModelsFunctions and Control 453.8 Liquid Compression Protection Function 1 (Securing of Differential Pressure and Blown

Control for Heat Pump Models Si01-40646 Functions and Control3.9 Liquid Compression Protection Function 2Outline In order to obtain the dependability

Si01-406 Control for Heat Pump ModelsFunctions and Control 473.11 Insufficient Gas ControlOutline If a power consumption is below the specified value

Control for Heat Pump Models Si01-40648 Functions and Control3.12 Forced Operation ModeOutline Forced operating mode includes only forced cooling.Deta

Si01-406Table of Contents v2. Wiring Diagrams...1902.1 Indoor Units ...

Si01-406System Configuration 49Part 5Part 5Part 5Part 5System ConfigurationSystem ConfigurationSystem ConfigurationSystem Configuration1. System Confi

System Configuration Si01-40650 System Configuration1. System ConfigurationAfter the installation and test operation of the room air conditioner have

Si01-406 InstructionsSystem Configuration 512. Instructions2.1 Manual Contents by ModelsReference Page★ : Illustrations and instructions are appropria

Instructions Si01-40652 System Configuration2.2 Safety PrecautionsSafety precautions•Keep this manual where the operator can easily find them.• Read t

Si01-406 InstructionsSystem Configuration 53•Do not stand or sit on the outdoor unit. Do not place any object on the unit to avoid injury, do not remo

Instructions Si01-40654 System Configuration2.3 Names of PartsFT25/35CV1ANames of parts Indoor Unit1345689102ONOFF13 14711 12

Si01-406 InstructionsSystem Configuration 55 Outdoor Unit Indoor Unit1. Air filter2. Air purifying filter with photocatalytic deodorizing function

Instructions Si01-40656 System Configuration Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:• It displays the

Si01-406 InstructionsSystem Configuration 57FT50/60CV1ANames of parts Indoor Unit Main unit control panel6121011431289751413

Instructions Si01-40658 System Configuration Outdoor Unit Indoor Unit1.Air filter2. Air purifying filter with photocatalytic deodorizing function:

Si01-406vi Table of Contents

Si01-406 InstructionsSystem Configuration 59 Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:• It displays the

Instructions Si01-40660 System ConfigurationFTY25/35CVMANames of parts Indoor Unit1345689102ONOFF13 14711 12

Si01-406 InstructionsSystem Configuration 61 Outdoor Unit Indoor Unit1. Air filter2. Air purifying filter with photocatalytic deodorizing function

Instructions Si01-40662 System Configuration Remote Controller1. Signal transmitter:•It sends signals to the indoor unit.2. Display:• It displays the

Si01-406 InstructionsSystem Configuration 632.4 Preparation before OperationPreparation Before Operation To set the batteries1. Press with a finger

Instructions Si01-40664 System ConfigurationPreparation Before Operation To operate the remote controller• To use the remote controller, aim the tran

Si01-406 InstructionsSystem Configuration 65 To set the clock1. Press “CLOCK button”.is displayed.blinks.2. Press “TIMER setting button” to set the c

Instructions Si01-40666 System Configuration2.5 AUTO • DRY • COOL • HEAT • FAN OperationAUTO · DRY · COOL · HEAT · FAN OperationThe air conditioner op

Si01-406 InstructionsSystem Configuration 67 To change the air flow rate setting5. Press “FAN setting button”.NOTEDRY mode AUTO or COOL or HEAT or FA

Instructions Si01-40668 System Configuration2.6 Adjusting the Air Flow DirectionAdjusting the Air Flow DirectionYou can adjust the air flow direction

Si01-406 Introductionvii1. Introduction1.1 Safety CautionsCautions and WarningsBe sure to read the following safety cautions before conducting repair

Si01-406 InstructionsSystem Configuration 692.7 POWERFUL OperationPOWERFUL OperationPOWERFUL operation quickly maximizes the effect in any of the oper

Instructions Si01-40670 System Configuration2.8 TIMER OperationTIMER OperationTimer functions are useful for automatically switching the air condition

Si01-406 InstructionsSystem Configuration 71 To use ON TIMER operation• Check that the clock is correct. If not, set the clock to the present time (p

Instructions Si01-40672 System Configuration2.9 Care and CleaningFT25/35CV1A, FTY25/35CVMACare and CleaningCAUTION Indoor unit, Outdoor unit and Re

Si01-406 InstructionsSystem Configuration 731. Open the front grille. 2. Pull out the air filters.• Push a little upwards the tab at the center of ea

Instructions Si01-40674 System ConfigurationCheck Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out the i

Si01-406 InstructionsSystem Configuration 75FT50/60CV1ACare and CleaningCAUTION Indoor unit, Outdoor unit and Remote controller1. Wipe them with dr

Instructions Si01-40676 System Configuration1. Open the front grille.2. Pull out the air filters.• Push a little upwards the tab at the center of eac

Si01-406 InstructionsSystem Configuration 77Check Before a long idle period1. Operate the “FAN only” for several hours on a fine day to dry out the i

Instructions Si01-40678 System Configuration2.10 TroubleshootingTrouble ShootingThe following cases are not air conditioner troubles but have some rea

Introduction Si01-406viii1.1.2 Cautions Regarding Products after RepairCautionDo not repair the electrical components with wet hands.Working on the eq

Si01-406 InstructionsSystem Configuration 79Please check again before calling a repair person.Check again.Case CheckThe air conditioner does not opera

Instructions Si01-40680 System ConfigurationWARNING When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF.C

Si01-406Service Diagnosis 81Part 6Part 6Part 6Part 6Service DiagnosisService DiagnosisService DiagnosisService Diagnosis1. Troubleshooting by Lamps...

Troubleshooting by Lamps Si01-40682 Service Diagnosis1. Troubleshooting by Lamps Operation Lamp The operation lamp flashes when any of the following e

Si01-406 Problem and SolutionService Diagnosis 832. Problem and SolutionProblem Check Solution ReferencePageNone of the units operates. Check the powe

Service Check Function Si01-40684 Service Diagnosis3. Service Check Function3.1 ARC423 Series Remote ControllerThe temperature display sections on the

Si01-406 Service Check FunctionService Diagnosis 853.2 ARC433 Series Remote ControllerThe temperature display sections on the main unit indicate corre

Troubleshooting Si01-40686 Service Diagnosis4. Troubleshooting4.1 Error Codes★: Displayed only when system-down occurs.Code DescriptionReferencePageSy

Si01-406 TroubleshootingService Diagnosis 874.2 Indoor Unit PCB Abnormality (A1)Remote Controller DisplayA1Method of Malfunction DetectionEvaluation o

Troubleshooting Si01-40688 Service Diagnosis4.3 Freeze-up Protection Control or High Pressure Control (A5) Remote Controller DisplayA5Method of Malfun